Note (1) ± 0.01% (100 ppm) is available. ± 0.02 % (200 ppm) - ESA qualified. (2) 33 Ω to 100 kω - available range. 50 Ω to 100 kω - ESA qualified

Size: px

Start display at page:

Download "Note (1) ± 0.01% (100 ppm) is available. ± 0.02 % (200 ppm) - ESA qualified. (2) 33 Ω to 100 kω - available range. 50 Ω to 100 kω - ESA qualified"

Martha Sanders
5 years ago
Views:

1 High Precision Flexible onstruction Bulk Metal Foil with Tolerance of ± 0.01 %, TR of 0 ± 2 ppm/ and Qualified to ESA Specification 4001/011 Based on RS92N (RN90Y) INTRODUTION Vishay Foil resistors are designed and manufactured to eliminate the inter-parameter compromise inherent in all other types of precision resistors. All important characteristics - tolerance, long term and load stability, temperature coefficient, noise, capacitance and inductance - are optimum, approaching in total performance the theoretical ideal, a straight wire. Vishay has developed a new resistor concept, through the use of a proprietary Bulk Metal and new, ultrafine photoetching techniques created by the company, so that the conductor can be considered a flat wire. Because the metals used are not drawn, wound or mistreated in any way during the manufacturing process, Vishay resistors maintain all of their design, physical and electrical characteristics. These factors are both measureable and predictable before, during and after manufacture. Through the entire process, every step is carefully controlled not only to keep the metal in its virgin state, but also to eliminate the effects of any stresses that might be imposed either during manufacture or use. The sub-assembled is guarded from external stresses by a flexible shock-absorbing insulation. In addition, the temperature coefficient of the resistor is carefully controlled through compensating techniques to eliminate the effect of different coefficients of expansion for all materials used in the resistor. Vishay resistors thus achieve maximum stability and near zero temperature coefficient. This superior performance is built-in for every unit, and does not rely on culling or other artificial means for uniform excellence. As expected, this unique process delivers a new state-of-the-art resistor with unmatched stability and total performance. All Vishay resistors are produced from Bulk Metal film elements of known and controllable characteristics. These elements are photoetched into a variety of resistive patterns in such a way the resistance is adjustable to a tolerance as low as 0.01 %. Permanent contact is provided through flexible ribbon leads welded to the resistive element, and then by wire leads welded to these ribbons. Routine assembly of the component to its circuit is assured while maintaining a flexible, non-stressing connection to the element. All Vishay resistors exhibit identical temperature coefficients because all are made of the same alloy and are of identical thickness. Thus, accurate tracking of one Vishay resistor to another is assured. Because of this excellent tracking ability, Vishay resistors are ideal for use in resistor networks where accurate ratios must be maintained. The entire assembly is built to eliminate or minimize the effects of thermal and mechanical stresses. Due to the unique performance of the Bulk Metal foil resistive elements, these resistors are very well adapted to high reliability applications. Our application engineering department is available to advise and to make recommendations. For non-standard technical requirements and special applications, please contact us. FEATURES Temperature coefficient of resistance (TR): ± 2 ppm/ typical (- 55 to + 125, + 25 ref.) Rated power: to 0.5 W at + 70 Tolerance: ± 0.01 % (100 ppm) (1) Load life stability: to ± % at 70, 2000 h at rated power Resistance range: 33 Ω to 100 kω (2) are not restricted to standard values, specific as required values can be supplied at no extra cost or delivery (e.g. 1K1234 vs. 1K) Non-inductive, non-capacitive design Rise time: 1 ns effectively no ringing Thermal stabilization time < 1 s (nominal value achieved within 10 ppm of steady state value) urrent noise: µv RMS /V of applied voltage (< - 40 db) Thermal EMF: 0.05 µv/ typical Voltage coefficient: < 0.1 ppm/v Low inductance: < 0.08 µh typical Pattern design minimizing hot spots Terminal finish: tin/lead alloy For better TR and PR performances please review the RN90Z and Z555 datasheets (Z-Foil technology) ESA/S 4001 Four variants are available, two reliability levels are proposed: Level B: part serialization and test measurements provided Level : part serialization and test measurements not provided Document Number: For any questions, contact: foil@vishaypg.com Revision: 4-May-10 1 LAT: Lot acceptance test level 3 (LAT3): 10 additional parts Lot acceptance test level 2 (LAT2): 25 additional parts Lot acceptance test level 1 (LAT1): 31 additional parts (1) ± 0.01% (100 ppm) is available ± 0.02 % (200 ppm) - ESA qualified (2) 33 Ω to 100 kω - available range 50 Ω to 100 kω - ESA qualified

2 DIMENSIONS in millimeters B H Measurement point A F Ø D G K E J SERIES RK HR 02, RK HR 02A DIM. IN mm DIM. VARIANTS (1) MIN. MAX. A B Ø D E F G H J K (1) The variant version determines if it is RK HR 02 or RK HR 02A FIGURE 1 - FOIL RESISTOR TR OMPARISON OF FOIL ALLOYS IN MILITARY RANGE R R 0 (ppm) ppm/ Alloy Temperature ( ) 2 ppm/ ELETRIAL SPEIFIATIONS VISHAY SFERNIE DESIGNATION RK HR Qualified Designation RN 90 ESA Specification 4001/011 Power Rating at + 70 Limiting Element Voltage Temperature oefficient Ohmic Value Range Tolerance 0.5 W 300 V ± 5 ppm/ ( , + 25 ref.) ± 10 ppm/ (+ 125 to ) 33 Ω to 100 kω available range 50 Ω to 100 kω qualified range ± 0.01 % to ± 1 % available range ± 0.02 % to ± 1 % qualified range Temperature Limits - 55 to Dielectric Voltage Soldering Temperature 425 V RMS 260, immersion 10 s at a distance of no less than 1.6 mm from the device body For any questions, contact: foil@vishaypg.com Document Number: Revision: 4-May-10

3 TYPIAL PERFORMANE SPEIFIATIONS TESTS Short Time Overload Rapid Temperature hange Terminal Strength Soldering (Thermal Shock) Vibration Humidity (Steady State) limatic Sequence Load Life High Temperature Exposure ONDITIONS U = 2 R n 5 s U max. < 450 V - 55 / cycles IE test Na IE test Ua, test U21 (tensile) 260 /10 s IE A test Tb (met. 1A) 10 Hz to 2000 Hz 1.5 mm or 20 g 6 h (met. B4) IE test Fc 56 days 95 % H.R. 40 IE IE /IE IE /IE h P n at '/30' cycle 1000 h at IE A Test B REQUIREMENTS ESA/S 4001/11 TYPIAL VALUES AND DRIFTS ± ( (0.01 Ω x 100)) % R n ± % ± ( (0.01 Ω x 100)) % R n ± % ± ( (0.01 Ω x 100)) % R n ± % ± ( (0.01 Ω x 100)) % R n ± % ± ( (0.01 Ω x 100)) % R n ± % N/a ± % Insulation resistance > 10 4 MΩ ± ( (0.01 Ω x 100)) % R n ± % Insulation resistance > 10 4 MΩ ± ( (0.01 Ω x 100)) % R n ± % ± ( (0.01 Ω x 100)) % R n ± 0.01 % FIGURE 2 - POWER RATING HART 0.6 TOLERANE ODE Tolerance ± % RATED POWER IN W AMBIENT TEMPERATURE IN ode S L P W B D F PAKAGING Resistors are packed in sealed blisters, up to 10 resistors per blister pack. The following information is printed on the blister pack: - order reference - date code - ESA specification reference - quality level - review number FIGURE 3 - TRIMMING TO VALUES (conceptual illustration) Interloop apacitance Reduction in Series Mutual Inductance Reduction due to hange in urrent Direction urrent Path Before Trimming urrent Path After Trimming Trimming Process Removes this Material from Shorting Strip Area hanging urrent Path and Increasing Resistance : Foil shown in black, etched spaces in white MARKING Ohmic value is printed on the top side, 3 to 6 digits are used, R stands for Ω and K for kω. The front side is printed as follows: - tolerance (letter code) - ESA specification reference - quality level - variant - manufacturing date (2 digits for the year, 2 digits for the week) - a letter to differentiate manufacturing sequence. ESA logo and serialization number are printed on the back side. Document Number: For any questions, contact: foil@vishaypg.com Revision: 4-May-10 3

4 ORDERING INFORMATION (1) RK HR kω ± 1 % B1 MODEL VERSION - VARIANT OHMI VALUE TOLERANE QUALITY LEVEL A A - 08 (1) For non-standard request, please contact FAE ESA ORDERING INFORMATION (1) (1) For non-standard request, please contact FAE ± 0.01 % ± 0.02 % ± 0.05 % ± 0.1 % ± 0.2 % ± 0.5 % ± 1 % B1 B2 B LAT on request (see page 1 LAT description) 4001/ B 1002 F LAT1 ESA PART DESRIPTION VARIANT LEVEL VALUE TOLERANE LAT ON REQUEST B The first three digits are significant figures and the last digit specifies the number of zero to follow. R designates decimal point. Example: 40R0 = 40 Ω 3901 = 3900 Ω 1002 = 10 kω L = ± 0.01 % P = ± 0.02 % W = ± 0.05 % = ± 0.2 % F = ± 1 % LAT on request (see page 1 LAT description) GLOBAL PART NUMBER INFORMATION (1) NEW GLOBAL PART NUMBER: Y705680K5000T0L (preferred part number format) DENOTES PREISION VALUE HARATERISTIS Y R = Ω K = kω M = MΩ 0 = standard 1 to 999 = custom Y K T 0 L PRODUT ODE RESISTANE TOLERANE PAKAGING 7056 = RK HR = RK HR 02A FOR EXAMPLE: ABOVE GLOBAL ORDER Y K5000 T 0 L: TYPE: RK HR 02 VALUE: 80.5 kω ABSOLUTE TOLERANE: ± 0.01 % TERMINATION: standard PAKAGING: bulk pack (1) For non-standard requests, please contact application engineering. T = ± 0.01 % Q = ± 0.02 % A = ± 0.05 % = ± 0.25 % F = ± 1.0 % L = bulk pack HISTORIAL PART NUMBER: RKHR10KB1W04 - Material Description: RKHR 02A_04 B1 10K 0.05 % (will continue to be used) RKHR 10K B 1 W 04 PRODUT ODE RESITANE VALUE NIVEAU LAT RESISTANE TOLERANE VARIANT 3/7 digits B L = ± 0.01 % P = ± 0.02 % W = ± 0.05 % = ± 0.2 % F = ± 1.0 % For any questions, contact: foil@vishaypg.com Document Number: Revision: 4-May-10

5 Legal Disclaimer Notice Vishay Precision Group, Inc. Disclaimer ALL PRODUTS, PRODUT SPEIFIATIONS AND DATA ARE SUBJET TO HANGE WITHOUT NOTIE. Vishay Precision Group, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively, VPG ), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein or in any other disclosure relating to any product. The product specifications do not expand or otherwise modify VPG s terms and conditions of purchase, including but not limited to, the warranty expressed therein. VPG makes no warranty, representation or guarantee other than as set forth in the terms and conditions of purchase. To the maximum extent permitted by applicable law, VPG disclaims (i) any and all liability arising out of the application or use of any product, (ii) any and all liability, including without limitation special, consequential or incidental damages, and (iii) any and all implied warranties, including warranties of fitness for particular purpose, non-infringement and merchantability. Information provided in datasheets and/or specifications may vary from actual results in different applications and performance may vary over time. Statements regarding the suitability of products for certain types of applications are based on VPG s knowledge of typical requirements that are often placed on VPG products. It is the customer s responsibility to validate that a particular product with the properties described in the product specification is suitable for use in a particular application. You should ensure you have the current version of the relevant information by contacting VPG prior to performing installation or use of the product, such as on our website at vpgsensors.com. No license, express, implied, or otherwise, to any intellectual property rights is granted by this document, or by any conduct of VPG. The products shown herein are not designed for use in life-saving or life-sustaining applications unless otherwise expressly indicated. ustomers using or selling VPG products not expressly indicated for use in such applications do so entirely at their own risk and agree to fully indemnify VPG for any damages arising or resulting from such use or sale. Please contact authorized VPG personnel to obtain written terms and conditions regarding products designed for such applications. Product names and markings noted herein may be trademarks of their respective owners. opyright Vishay Precision Group, Inc., All rights reserved. Document No.: Revision: 15-Jul

VHZ Hermetic (Z-Foil)

VHZ Hermetic (Z-Foil) New Generation of Secondary Standards Hermetically Sealed Construction Ultra High Precision Z-Foil Technology Resistors with TCR of ± 0.2 ppm/ C, Tolerance of ± 0.005 % and Load Life Stability of ± 0.005